Overhang on steps

Is there a necessity for the tread overhang on stairs/steps? If so, what is it?
nb
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
snipped-for-privacy@bb.nothome.com wrote:

Yes, there is. According to the books I read it's so that you don't hit your heel or toes against the riser.
Chris
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

Check out the site stairways.org. They have a visual interpretation of the recent stair codes with sketches and dimensions.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
On Tue, 16 Jun 2009 18:58:01 -0600, snipped-for-privacy@bb.nothome.com wrote:

From the IRC
A nosing not less than 3/4 inch (19 mm) but not more than 11/4 inches (32 mm) shall be provided on stairways with solid risers. The greatest nosing projection shall not exceed the smallest nosing projection by more than 3/8 inch (9.5 mm) between two stories, including the nosing at the level of floors and landings. <clip> Exceptions: 1. A nosing is not required where the tread depth is a minimum of 11 inches (279 mm).
Mike O.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
snipped-for-privacy@bb.nothome.com wrote in

I've found it's easier to get a dolly (hand truck) up the stairs when there's a overhang. It's something about pivot points and other such magic.
Puckdropper
--
"The potential difference between the top and bottom of a tree is the
reason why all trees have to be grounded..." -- Bored Borg on
  Click to see the full signature.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

The riser adds more strength if it is closer to the middle of the step where most of the weight is applied.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

HomeOwnersHub.com is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.